Equipment unit · VIN-decoded · NHTSA vPIC

2020 Stoughton Trailers

1DW1A5321LSA43117 · Trailer · TRAILER
Carriers run under4
33 mo
Inspections4
all-time
OOS inspections0
of 4
First seenJun 25, 2023
NC
Last seenMar 23, 2026
MS
Inspected under 4 different carriers in 33 months
A unit that bounces between many operators can indicate slip-seating, heavy sub-haul, or double-brokering. Review the carrier timeline below for load integrity — context for human judgment, not a verdict.
01

Decoded identity

From the 17-character VIN via NHTSA vPIC

VIN
1DW1A5321LSA43117
Make
Stoughton Trailers
Model
Stoughton Trailers
Model year
2020
Body class
Trailer
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Jul 5, 2026
vPIC returns make / model / year / body class / GVWR. Fields it does not resolve are shown as Not decoded rather than guessed.
Decode evidence & sources

Deterministic structure

These fields come directly from VIN positions and the published checksum calculation, with zero store IO.

World manufacturer identifier
1DW

Deterministic · VIN positions 1–3.

Vehicle descriptor section
1A532

Deterministic · VIN positions 4–8.

Check digit
1 · valid

Deterministic · position 9; calculated value 1.

Model year candidates
1990 or 2020

Position 10 repeats every 30 years; both candidates are retained and neither is silently selected.

North American serial sequence
A43117

Deterministic · positions 12–17 for a North American WMI.

Sourced platform inference

The prefix store publishes only at support ≥ 3 and purity ≥ 90%. Prefix confidence is shown beside every established platform claim.

Make
STOUGHTON TRAILERS

Prefix basis · 12,945 decoded VINs at 100.0% prefix purity.

Model
Stoughton Trailers

Prefix basis · 12,945 decoded VINs at 100.0% prefix purity.

Model line
Not established

No sourced model-line label is established.

No source established for this field.

Generation
Not established

No sourced generation label is established.

No source established for this field.

Cab type
Not established

No sourced cab label is established.

No source established for this field.

Federal observation (NHTSA vPIC)

What the federal corpus observed directly for this exact VIN — independent of, and sometimes more specific than, the prefix-level inference above.

Observed model year
2020

Observed directly for this VIN via NHTSA vPIC.

Observed make
STOUGHTON TRAILERS

Observed directly for this VIN via NHTSA vPIC.

Observed model
Stoughton Trailers

Observed directly for this VIN via NHTSA vPIC.

Observed body class
Trailer

Observed directly for this VIN via NHTSA vPIC.

Observed vehicle type
TRAILER

Observed directly for this VIN via NHTSA vPIC.

GVWR
Not established

Observed directly for this VIN via NHTSA vPIC.

Not established

  • model line
  • generation
  • cab type

These are withheld claims, not negative findings.

02

Inspection history

Every roadside inspection of this VIN, newest first · Jun 25, 2023 – Mar 23, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Mar 23, 2026MSIII · Driver-only1TBIS EXPRESS INC 3921615TM6793/ID
Mar 29, 2024MOIII · Driver-only0FORWARD A2B INC 3700129TM6793/FL
Sep 20, 2023NCI · Full0J S TRANSPORT LLC 3071641TM6793/ID
Jun 25, 2023NCII · Walk-around2DNM EXPRESS LLC 3737065TM6793/ID
03

Carriers this unit has run under

4 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
TBIS EXPRESS INC3921615Mar 23, 2026Mar 23, 20261IL
FORWARD A2B INC3700129Mar 29, 2024Mar 29, 20241IL
J S TRANSPORT LLC3071641Sep 20, 2023Sep 20, 20231CA
DNM EXPRESS LLC3737065Jun 25, 2023Jun 25, 20231OH
Names are left-joined from the FMCSA census; a DOT with no census match falls back to its number.
04

Plate & unit-number history

The same truck under different plate registrations across carriers

PlateState / prov.Unit no.CarrierDate rangeInsp.
TM6793IDTBIS EXPRESS INCMar 23, 2026Mar 23, 20261
TM6793FLFORWARD A2B INCMar 29, 2024Mar 29, 20241
TM6793IDJ S TRANSPORT LLCSep 20, 2023Sep 20, 20231
TM6793IDDNM EXPRESS LLCJun 25, 2023Jun 25, 20231
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 5, 2026